Ft Defiance, NN
Fort Defiance-Window Rock-St Michaels NTUA Water System
Consumer Confidence Report status
Fort Defiance-Window Rock-St Michaels NTUA must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 2 items for Fort Defiance-Window Rock-St Michaels NTUA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Navajo Nation’s official records. Always confirm current status with Navajo Nation before making decisions based on this information.
System facts
- System ID (PWSID)
- NN0403000
- System type
- Community Water System
- Population served
- 12,869
- Service connections
- 3,763
- Ownership
- Native American tribal
- Water source
- groundwater (wells)
Fort Defiance-Window Rock-St Michaels NTUA is the second largest community water system in Navajo Nation, serving 12,869 people from groundwater.
As of August 1, 2026, its federal record holds 156 entries between 2002 and 2025, of which 2 remain open; none are health-based.
Of the 156, 128 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, synthetic organic chemicals, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Treatment Technique, Level 1 Assessment (RTCR)
Health-basedRevised Total Coliform Rule
February 1, 2025 – July 11, 2025
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
February 1, 2025
UnaddressedPublic Notification Violation for NPDWR Violation
—Public Notice
October 1, 2024
UnaddressedMaximum Contaminant Level Violation, Average
Health-basedTTHM
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Routine (IDSE)
—TTHM
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
April 1, 2018 – June 30, 2018
ResolvedMonitoring, Routine (IDSE)
—TTHM
April 1, 2018 – June 30, 2018
ResolvedMonitoring, Regular
—Nitrate
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Nitrite
January 1, 2018 – December 31, 2018
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2017 – March 31, 2017
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
January 1, 2017 – May 19, 2017
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
October 1, 2016 – December 31, 2016
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
July 1, 2016 – September 30, 2016
ResolvedSample Siting Plan Errors (RTCR)
—Revised Total Coliform Rule
April 1, 2016 – September 30, 2025
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
April 1, 2016 – June 30, 2016
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
February 1, 2016 – February 29, 2016
ResolvedMonitoring, Routine (IDSE)
—TTHM
January 1, 2016 – March 8, 2016
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
January 1, 2016 – March 8, 2016
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2016 – March 31, 2016
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
October 1, 2015 – December 31, 2015
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
October 1, 2015 – July 1, 2016
ResolvedMonitoring, Routine (IDSE)
—TTHM
July 1, 2015 – September 30, 2015
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
July 1, 2015 – September 30, 2015
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
July 1, 2015 – July 1, 2016
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
July 1, 2015 – September 30, 2015
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Routine (IDSE)
—TTHM
April 1, 2015 – June 30, 2015
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 2014 – July 4, 2014
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
July 1, 2013 – September 30, 2013
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Uranium
July 1, 2013 – September 30, 2013
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Uranium
April 1, 2013 – June 30, 2013
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Uranium
January 1, 2013 – March 31, 2013
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2012 – December 31, 2012
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2012 – November 30, 2012
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Uranium
October 1, 2012 – December 31, 2012
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
October 1, 2012 – October 31, 2012
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2011 – August 31, 2011
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Styrene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Benzene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Toluene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2011 – December 31, 2013
ResolvedMaximum Contaminant Level Violation, Average
Health-basedThallium, Total
October 1, 2010 – December 31, 2010
ResolvedMaximum Contaminant Level Violation, Average
Health-basedAntimony, Total
October 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Nitrate
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Nitrite
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Arsenic
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Barium
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Cadmium
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Chromium
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Fluoride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Mercury
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Selenium
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Endrin
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Dalapon
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Diquat
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Endothall
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Simazine
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Picloram
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Atrazine
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—LASSO
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—2,4-D
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Chlordane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Benzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Toluene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Styrene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Styrene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Toluene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Benzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2005 – December 31, 2010
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
May 1, 2004 – May 31, 2004
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
November 1, 2003 – November 30, 2003
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
January 1, 2003 – January 31, 2003
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
January 1, 2003 – January 31, 2003
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
May 1, 2002 – May 31, 2002
Resolved
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| February 1, 2025 – July 11, 2025 | Treatment Technique, Level 1 Assessment (RTCR) | Revised Total Coliform Rule | Health-based | Resolved |
| February 1, 2025 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| October 1, 2024 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| October 1, 2024 – December 31, 2024 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| April 1, 2018 – June 30, 2018 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2018 – June 30, 2018 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Nitrite | — | Resolved |
| January 1, 2017 – March 31, 2017 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| January 1, 2017 – May 19, 2017 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| October 1, 2016 – December 31, 2016 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| July 1, 2016 – September 30, 2016 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| April 1, 2016 – September 30, 2025 | Sample Siting Plan Errors (RTCR) | Revised Total Coliform Rule | — | Resolved |
| April 1, 2016 – June 30, 2016 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| February 1, 2016 – February 29, 2016 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2016 – March 8, 2016 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| January 1, 2016 – March 8, 2016 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2016 – March 31, 2016 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| October 1, 2015 – December 31, 2015 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| October 1, 2015 – July 1, 2016 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| July 1, 2015 – September 30, 2015 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| July 1, 2015 – September 30, 2015 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2015 – July 1, 2016 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| July 1, 2015 – September 30, 2015 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| July 1, 2014 – July 4, 2014 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2013 – September 30, 2013 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| July 1, 2013 – September 30, 2013 | Maximum Contaminant Level Violation, Average | Combined Uranium | Health-based | Resolved |
| April 1, 2013 – June 30, 2013 | Maximum Contaminant Level Violation, Average | Combined Uranium | Health-based | Resolved |
| January 1, 2013 – March 31, 2013 | Maximum Contaminant Level Violation, Average | Combined Uranium | Health-based | Resolved |
| December 1, 2012 – December 31, 2012 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 2012 – November 30, 2012 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2012 – December 31, 2012 | Maximum Contaminant Level Violation, Average | Combined Uranium | Health-based | Resolved |
| October 1, 2012 – October 31, 2012 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2011 – August 31, 2011 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| October 1, 2010 – December 31, 2010 | Maximum Contaminant Level Violation, Average | Thallium, Total | Health-based | Resolved |
| October 1, 2010 – December 31, 2010 | Maximum Contaminant Level Violation, Average | Antimony, Total | Health-based | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Nitrite | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| May 1, 2004 – May 31, 2004 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| November 1, 2003 – November 30, 2003 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2003 – January 31, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 2003 – January 31, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| May 1, 2002 – May 31, 2002 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- December 5, 2025State Formal Notice of Violation issued1 linked violation
- September 30, 2025State Compliance achieved1 linked violation
- July 11, 2025State Compliance achieved1 linked violation
- June 26, 2025State Formal Notice of Violation issued1 linked violation
- June 26, 2025State Formal Notice of Violation issued1 linked violation
- June 26, 2025State Formal Notice of Violation issued1 linked violation
- April 25, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- April 25, 2025State Formal Notice of Violation issued1 linked violation
- April 25, 2025State Formal Notice of Violation issued1 linked violation
- April 25, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- February 27, 2025State Compliance achieved1 linked violation
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- February 14, 2019State Compliance achieved1 linked violation
- February 14, 2019State Compliance achieved1 linked violation
- December 18, 2018State Compliance achieved1 linked violation
- December 18, 2018State Compliance achieved1 linked violation
- December 18, 2018State Compliance achieved1 linked violation
- December 18, 2018State Compliance achieved1 linked violation
- September 27, 2018State Formal Notice of Violation issued1 linked violation
- September 27, 2018State Public Notification issued1 linked violation
- September 27, 2018State Public Notification issued1 linked violation
- September 27, 2018State Formal Notice of Violation issued1 linked violation
- June 23, 2017State Formal Notice of Violation issued1 linked violation
- June 23, 2017State Public Notification issued1 linked violation
- May 30, 2017State Compliance achieved1 linked violation
- May 19, 2017State Compliance achieved1 linked violation
- March 7, 2017State Formal Notice of Violation issued1 linked violation
- March 7, 2017State Public Notification issued1 linked violation
- February 6, 2017State Compliance achieved1 linked violation
- February 6, 2017State Compliance achieved1 linked violation
- February 6, 2017State Compliance achieved1 linked violation
- February 6, 2017State Compliance achieved1 linked violation
- December 8, 2016State Formal Notice of Violation issued1 linked violation
- November 18, 2016State Compliance achieved1 linked violation
- November 18, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- November 18, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- August 31, 2016State Formal Notice of Violation issued1 linked violation
- August 31, 2016State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- August 31, 2016State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- August 31, 2016State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- July 1, 2016State Compliance achieved1 linked violation
- July 1, 2016State Compliance achieved1 linked violation
- May 31, 2016State Formal Notice of Violation issued1 linked violation
- May 31, 2016State Formal Notice of Violation issued1 linked violation
- May 31, 2016State Public Notification issued1 linked violation
- May 31, 2016State Public Notification issued1 linked violation
- May 31, 2016State Public Notification issued1 linked violation
- May 31, 2016State Formal Notice of Violation issued1 linked violation
- May 31, 2016State Formal Notice of Violation issued1 linked violation
- May 9, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- May 9, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- March 8, 2016State Formal Notice of Violation issued1 linked violation
- March 8, 2016State Formal Notice of Violation issued1 linked violation
- March 8, 2016State Compliance achieved1 linked violation
- March 8, 2016State Compliance achieved1 linked violation
- March 7, 2016State Compliance achieved1 linked violation
- December 2, 2015State Public Notification issued1 linked violation
- December 2, 2015State Public Notification issued1 linked violation
- December 2, 2015State Formal Notice of Violation issued1 linked violation
- December 2, 2015State Formal Notice of Violation issued1 linked violation
- December 2, 2015State Formal Notice of Violation issued1 linked violation
- December 2, 2015State Public Notification issued1 linked violation
- November 17, 2015State Compliance achieved1 linked violation
- November 17, 2015State Compliance achieved1 linked violation
- November 17, 2015State Compliance achieved1 linked violation
- November 17, 2015State Compliance achieved1 linked violation
- November 17, 2015State Compliance achieved1 linked violation
- August 20, 2015State Public Notification issued1 linked violation
- August 20, 2015State Public Notification issued1 linked violation
- August 20, 2015State Formal Notice of Violation issued1 linked violation
- August 20, 2015State Formal Notice of Violation issued1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- April 6, 2015State Compliance achieved1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Public Notification issued1 linked violation
- July 4, 2014State Compliance achieved1 linked violation
- May 8, 2014State Compliance achieved1 linked violation
- April 1, 2014State Compliance achieved1 linked violation
- April 1, 2014State Compliance achieved1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Formal Notice of Violation issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Public Notification issued1 linked violation
- March 20, 2014State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- February 28, 2014State Compliance achieved1 linked violation
- April 20, 2013State Compliance achieved1 linked violation
- April 1, 2013State Compliance achieved1 linked violation
- March 13, 2013State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- March 13, 2013State Formal Notice of Violation issued1 linked violation
- March 13, 2013State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- March 13, 2013State Formal Notice of Violation issued1 linked violation
- March 1, 2013State no longer subject to Rule1 linked violation
- March 1, 2013State no longer subject to Rule1 linked violation
- January 11, 2013State Compliance achieved1 linked violation
- January 11, 2013State Formal Notice of Violation issued1 linked violation
- December 11, 2012State Compliance achieved1 linked violation
- November 7, 2012State Compliance achieved1 linked violation
- November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- August 13, 2012State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- August 13, 2012State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 23, 2012State Compliance achieved1 linked violation
- February 21, 2012State Compliance achieved1 linked violation
- February 21, 2012State Other1 linked violation
- February 21, 2012State Compliance achieved1 linked violation
- February 21, 2012State Other1 linked violation
- November 22, 2011State Formal Notice of Violation issued1 linked violation
- November 22, 2011State Public Notification requested1 linked violation
- October 21, 2011State Compliance achieved1 linked violation
- September 7, 2011State Compliance achieved1 linked violation
- January 25, 2011State Compliance achieved1 linked violation
- January 25, 2011State Compliance achieved1 linked violation
- January 25, 2011State Compliance achieved1 linked violation
- January 25, 2011State Compliance achieved1 linked violation
- January 16, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
Common questions
Is Fort Defiance-Window Rock-St Michaels NTUA required to publish a Consumer Confidence Report?
- Yes. Fort Defiance-Window Rock-St Michaels NTUA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is Fort Defiance-Window Rock-St Michaels NTUA’s next Consumer Confidence Report due?
- Fort Defiance-Window Rock-St Michaels NTUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Fort Defiance-Window Rock-St Michaels NTUA have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 2 items for Fort Defiance-Window Rock-St Michaels NTUA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
Navajo Tribal Utility Authority
9287296277
Ft Defiance, AZ 86504